adv. 两次,两倍
来源于古英语twige(两次)。
拆分: twi-二 + -ce副词词尾
同源词:two
例:Bob phoned twice today. 鲍勃今天打了两次电话。 This box is twice as large as that one. 这个盒子是那个盒子的两倍。 Twice three is six. 二三得六。